Abishag Ministers to David

11 And king David was old [and] advanced in age; and they covered him with clothes, but he obtained no warmth. 2 And his servants said to him, Let there be found for my lord the king a young virgin; and let her stand before the king, and let her cherish him, and let her lie in thy bosom, that my lord the king may get warm. 3 And they sought for a fair damsel throughout the territory of Israel, and found Abishag a Shunammite, and brought her to the king. 4 And the damsel was very fair; and cherished the king, and ministered to him; but the king knew her not.

Matthew Henry's Commentary on 1 Kings 1:1-4

Commentary on 1 Kings 1:1-4

(Read 1 Kings 1:1-4)

We have David sinking under infirmities. He was chastised for his recent sins, and felt the effects of his former toils and hardships.